What is the pH range of an acid?

• 4-6

• 1-7

• 1-6

• 8-14

Which of the following pH values would be the weakest acid?

• 1

• 3

• 5

• 6

Which of the following pH values would be the strongest acid?

• 1

• 3

• 4

• 6

Which of the following chemical formulas is NOT an acid?

• HBr

• HF

• HCl

• LiOH

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

Which of the following statements about acids is true?

• They taste sweet.
• They taste sour.
• They have a pH between 8-14.

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5

What would be considered the weakest base? 

• 8
• 14
• 7

• 11

Pure water has a pH of 7. Pure water _______.

• is a base
• is a neutral substance
• could be either an acid or a base
• is an acid

The pH of a human blood sample was measured to be 7.41. What is the [OH⁻] in this blood?

• Cannot be determined from the information given.

• 6.59 mol/L

• 2.57 × 10⁻⁷ mol/L

• 3.89 × 10⁻⁸ mol/L

• 6.05 × 10⁻⁷ mol/L